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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 4. Отображено 4.
05-06-2013 дата публикации

Solid propellant formula optimization method based on genetic algorithm and energy feature graph

Номер: CN103136430A
Автор: Xu Siyu, Tian Deyu, Zhao Fengqi, Li Meng, Zhao Hongan, Zhang Xiaohong, Wang Guoqiang
Принадлежит:

The invention discloses a solid propellant formula optimization method based on a genetic algorithm and an energy feature graph. The solid propellant formula optimization method based on the genetic algorithm and the energy feature graph includes a first step of modeling, namely, establishing four energy feature calculation models according to a minimum free energy principle; a second step of setting and storing initial parameters; a third step of utilizing the genetic algorithm to implement formula optimization design; a fourth step of setting a value range used for graphic plotting and calculating mass contents of various kinds of raw material; and a fifth step of drawing the energy feature graph. The drawing process includes the steps of energy feature parameter inputting, energy feature curvilinear equation fitting, energy feature graph drawing, and synchronous energy feature graph displaying. The method is simple in step, reasonable in design, convenient to achieve and good in use ...

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Номер записи: 1
10-07-2013 дата публикации

Solid propellant formulation optimization design method based on genetic algorithm

Номер: CN103198356A
Автор: Zhao Fengqi, Xu Siyu, Tian Deyu, Li Meng, Wang Guoqiang, Luo Yang, Zhao Hongan
Принадлежит:

The invention discloses a solid propellant formulation energy optimization design method based on a genetic algorithm. The method comprises a first step of modeling, and building an energy characteristic calculation model of solid propellant according to a minimum free energy principle; a second step of setting and storing initial parameters, inputting component species used by the solid propellant, and a chemical formula and a quality proportion range of each component, and inputting species of combustion products produced by the solid propellant after being combusted, and chemical formulas and relative molecular mass of all the combustion products or selecting all the combustion products in a combustion product data base; and a third step of calling a genetic algorithm module by a data processor, and conducting optimization design to quality proportion of the designed solid propellant. The solid propellant formulation energy optimization design method based on the genetic algorithm is ...

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Номер записи: 2
08-01-2014 дата публикации

Three-axis linkage vertical milling and turning center

Номер: CN103495870A
Автор: Zhao Hongan, Lan Tiejun, Ma Junqing, Liu Chunyang, Duan Zhoubo, Liu Hui, Yu Chenyi, Fu Chengyun
Принадлежит:

The invention discloses a three-axis linkage vertical milling and turning center which comprises a lathe bed and a worktable. One end of the lathe bed is fixedly connected with an upright column, the upright column is provided with a main shaft box capable of moving vertically relative to the upright column, the side face of the upright column is provided with a cutter replacement mechanism, the worktable is arranged on a sliding frame through a vertical rotary shaft, the sliding frame is disposed on the lathe bed, a sliding mechanism longitudinally arranged along the lathe bed is disposed between the sliding frame and the lathe bed, a drive motor is arranged in the sliding frame and is connected with the rotary shaft, and a drive motor is arranged on the lathe bed and is connected with the sliding frame through a transmission mechanism. The three-axis linkage vertical milling and turning center can be used for normal milling, workpieces can undergo milling when rotating along with the ...

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Номер записи: 3
21-08-2013 дата публикации

Solid propellant smog characteristic virtual evaluation method based on plume field

Номер: CN103258083A
Автор: Zhao Fengqi, Xiao Chuan, Li Meng, Xiong Xianfeng, Zhao Hongan, Liang Yong, Yao Ergang
Принадлежит:

The invention discloses a solid propellant smog characteristic virtual evaluation method based on a plume field. The method includes the steps of (1) setting and storing an original parameter, (2) calculating an energy characteristic parameter, (3) calculating the plume field of an engine, (4) calculating a first-time-smog feature value, calling a calculation model of a first-time-smog shielding rate and by reference to the calculation result of the plume field, calculating first-time-smog shielding rates k at all positions of a spray pipe axis in the plume field of the engine after an evaluated solid propellant is combusted, and (5) calculating a second-time-smog feature value, calling a calculation model of relative humidity of second-time-smog, and by reference to the calculation result of the plume field, calculating the relative humidity RHamb of the second-time-smog at all positions of the spray pipe axis in the plume filed of the engine after the evaluated solid propellant is combusted ...

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Номер записи: 4